appears as Letterman and Beavis as band leader Paul Shaffer), B&B are watching television at home when Beavis asks Butt-head to "put on that Letter dude". Butt-Head switches to Letterman's show just in time for his lead-in for "Top Ten Ways to Break Stuff". Biology Teacher (Laraine Newman) - A brunette female teacher who replaces Mrs. Dickey in the 2011 revival episodes (Dumb Design, Copy Machine and School Test). Highland High faculty and staff Principal McVicker (voiced by Mike Judge) - The principal of Highland High School. McVicker suffers from extreme nervous tension caused by having to deal with Beavis and Butt-Head over the years. He hates the duo more than anyone else. He speaks with a New York accent, constantly shakes, his voice is strained, and he keeps a bottle of Old Crow whiskey in his desk, from which he drinks even when people are present. McVicker also has a bottle of pills (presumably anti-depressants or xanax) that he keeps in his desk and also will use (by the handful) in public. He also has threatened to kill Beavis and Butt-head. Most commonly, he also refers to the duo as "little bastards"; in return, the duo refers to McVicker as "McDicker". When Beavis and Butt-Head are assumed to be dead in the last episode, McVicker organizes a teachers' party. When they show up at a memorial fundraiser though, McVicker suffers a heart attack, and Coach Buzzcut attempts to resuscitate him afterwards with CPR, while Beavis and Butt-Head incorrectly assume he was "making out" with McVicker. His fate was left ambiguous for several years until the 2011 series revealed that he was still alive, and still dealing poorly with Beavis and Butt-Head's antics and stupidity. His name is spelled "McVicar" in early episodes. Coach Bradley Buzzcut (voiced by Mike Judge) - He is in charge of Physical Education, Math and Science; the angry, loud-mouthed, antisocial Buzzcut dislikes Beavis and Butt-Head nearly as much as Principal McVicker does. He has a military background in the United States Marine Corps, although in an earlier episode he also made reference to serving with "the Big Red One" in the Vietnam War. He takes great pleasure in belittling anyone, especially the duo. He looks at them as personifying everything wrong with humanity. David Van Driessen (voiced by Mike Judge) - A teacher who is characterized as an extremely liberal hippie. Specifically, he is a